/*-
 * #%L
 * LmdbJava
 * %%
 * Copyright (C) 2016 - 2020 The LmdbJava Open Source Project
 * %%
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 * 
 *      http://www.apache.org/licenses/LICENSE-2.0
 * 
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 * #L%
 */

package org.lmdbjava;

/**
 * Environment information, as returned by {@link Env#info()}.
 */
public final class EnvInfo {

  /**
   * ID of the last used page.
   */
  public final long lastPageNumber;

  /**
   * ID of the last committed transaction.
   */
  public final long lastTransactionId;

  /**
   * Address of map, if fixed.
   */
  public final long mapAddress;

  /**
   * Size of the data memory map.
   */
  public final long mapSize;

  /**
   * Max reader slots in the environment.
   */
  public final int maxReaders;

  /**
   * Max reader slots used in the environment.
   */
  public final int numReaders;

  EnvInfo(final long mapAddress, final long mapSize, final long lastPageNumber,
          final long lastTransactionId, final int maxReaders,
          final int numReaders) {
    this.mapAddress = mapAddress;
    this.mapSize = mapSize;
    this.lastPageNumber = lastPageNumber;
    this.lastTransactionId = lastTransactionId;
    this.maxReaders = maxReaders;
    this.numReaders = numReaders;
  }

  @Override
  public String toString() {
    return "EnvInfo{" + "lastPageNumber=" + lastPageNumber
               + ", lastTransactionId=" + lastTransactionId + ", mapAddress="
               + mapAddress + ", mapSize=" + mapSize + ", maxReaders="
               + maxReaders + ", numReaders=" + numReaders + '}';
  }

}
